Cocking serrations machined on the front of your slide, can be vertical or angled. You can have the factory engraving on a glock removed or outlined. Price includes machining services only. We'll break the sharp edges with a stone, but bead blasting and refinishing is separate. The slide pictured above has been hit with some cold blue after machining to prevent rusting. We typically machine five serrations on standard and compact models and seven serrations on the G34 length slides.